# Probability Trees

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- Created by: Fiona S
- Created on: 21-02-15 01:00

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Probability trees are used to calculate the probabilities of successive (one after another) events.

**Example**

Eve has 3 red socks and 2 blue socks. She picks a sock at random, notes the colour, then puts it back in the drawer. She then picks another sock at random.

If you are going along the branches you **multiply** probabilities.

Find the…

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